Njengamanje, izinto zamapayipi ezisetshenziswa emotweni zingahlukaniswa ngezigaba ezintathu: ipayipi inayiloni, ipayipi lerabha kanye nepayipi lensimbi.Amashubhu enayiloni asetshenziswa kakhulu yi-PA6, PA11 kanye ne-PA12.Lezi zinto ezintathu zihlangene zibizwa ngokuthi i-aliphatic Pa. PA6 ne-PA12 ziyi-polymerization yokuvula indandatho kanti i-PA11 i-condensation polymerization.
1. Izinzuzo zeipayipi inayilonizimi kanje: ▼ ukumelana nowoyela okuhle kakhulu (uphethiloli, udizili), uwoyela wokugcoba namafutha, nokumelana namakhemikhali.▼ ukumelana nezinga lokushisa eliphansi: I-PA11 ingakwazi ukumelana nezinga lokushisa eliphansi elingu-50 ℃ futhi i-PA12 ingakwazi ukumelana nomthelela ophansi wokushisa ongu--40 ℃.▼ ububanzi bezinga lokushisa lohlelo lokusebenza: izinga lokushisa lesicelo le-PA11 lingu-40 ~ 125 ℃, futhi indawo ye-PA12 ingu-40 ~ 105 ℃.Ngemuva kokuhlolwa kokuguga ku-125 ℃, 1000h, 150 ℃ no-16h, ipayipi le-PA11 linokusebenza okuhle komthelela wezinga lokushisa eliphansi.▼ ukumelana ne-oxygen ne-zinc salt corrosion: ukumelana nesisombululo se-zinc chloride esingu-50% esingaphezu kuka-200H.▼ ukumelana ne-asidi yebhethri ne-ozone.▼ iwumsebenzi ozigcobayo okwazi ukumelana nokudlidliza, ukumelana nokugqokwa, ukumelana nokukhathala kanye ne-coefficient ephansi yokungqubuzana.▼ Ukumelana ne-UV nokuguga komkhathi: ukumelana kwe-UV kombala wemvelo we-PA11 kungasetshenziswa iminyaka engu-2.3-7.6 kuye ngezifunda ezahlukene;Amandla e-anti ultraviolet we-PA11 emnyama akhuphuke izikhathi ezine ngemva kokwengeza into emunca i-anti ultraviolet.
Inqubo yokucubungula yepayipi inayiloni yile: ① inqubo yokukhipha ② inqubo yokwenza ③ inqubo yokuhlanganisa ④ inqubo yokuthola.Ngenjwayelo,ipayipi inayiloniinezinzuzo ezinkulu ekusebenzeni uma kuqhathaniswa nepayipi lensimbi, kuyilapho lingcono ekumelaneni nokugqwala kwamakhemikhali nokumelana nokugqoka uma kuqhathaniswaipayipi lensimbi engagqwali, edlala indima enkulu ekwehliseni isisindo semoto kanye nezindleko zokukhiqiza.
2. Ziningiipayipi lerabhaizakhiwo zemoto, futhi izakhiwo eziyisisekelo zihlanganisa uhlobo olujwayelekile, uhlobo oluqinisiwe kanye nohlobo oluboshwe.
Isakhiwo esiyisisekelo sepayipi lenjoloba njengamanje, izinto ezisetshenziswa kakhulu zamapayipi enjoloba emakethe yi-FKM, NBR, Cr, CSM kanye ne-eco: ▼ izinga lokushisa lesevisi le-FKM (fluororubber) lingu-20 ~ 250 ℃, elisetshenziselwa ikakhulukazi i-O- indandatho, uphawu lwamafutha, ungqimba lwangaphakathi lweipayipi lamafuthaneminye imikhiqizo yokuvala uphawu.▼ izinga lokushisa lesevisi le-NBR (irabha ye-nitrile) lingu-30 ~ 100 ℃, elisetshenziselwa ikakhulukazi ipayipi lenjoloba, indandatho yokuvala kanye nophawu lwamafutha.▼ izinga lokushisa lensizakalo ye-Cr (injoloba ye-chloroprene) ingu-45 ~ 100 ℃, esetshenziselwa ikakhulukazi i-tape, ipayipi, i-wire coating, i-rubber plate gasket 'ikhava yothuli, njll. ~ 120 ℃, esetshenziselwa kakhulu amathayi, itheyiphu, i-spark plug sheath, izintambo, izingxenye zikagesi, ama-O-rings, imicu yokuvala umnyango newindi, njll. esetshenziswa kakhulu indandatho eshisayo, i-diaphragm, i-shock pad, ipayipi lerabha, njll.
3. Njengohlobo lwepayipi eliqinile,ipayipi lensimbiinezinzuzo zesisindo esinzima, izindleko eziphezulu kanye nokuphuka okulula.Ngakho-ke, amabhizinisi amaningi ezimoto akhetha ukuyeka ukusetshenziswa kwepayipi lensimbi.Njengamanje, ipayipi le-aluminium lensimbi lifaneleka kakhulu ohlelweni lwe-air conditioning.Nokho, amandla aqinile, ingcindezi eqhumayo kanye nokumelana nokuguga kwamapayipi ensimbi kungcono kunalawo amapayipi enayiloni namapayipi enjoloba.
Isikhathi sokuthumela: May-24-2022